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LAUNCH X431 PRO3S+ Elite Fixed Hyundai Tucson P090B78 DCT

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 The Launch X431 PRO3S+ Elite is a high-performance diagnostic tool built for 2022+ vehicle architectures. I recently used it on a 2022 Hyundai Tucson (NX4) experiencing a common dual-clutch transmission (DCT) failure: loss of even gears and reverse. The scanner’s bi-directional controls and Smartlink Jbox were essential for pinpointing the fault without an expensive teardown. Fast Diagnostics with Topology Mapping Smartlink Jbox & Auto VIN: The tool immediately identified the 1.6T GDI Tucson and its specific chassis configuration. Topology Map: Provides a visual CAN bus layout, showing the communication status of every module at a glance. Real-time Monitoring: I used the scanner to check OBDII pin voltages (Pins 16, 14, and 6) to rule out bus communication errors early. Pinpointing DTC P090B78 The scanner identified P090B78 (Clutch B Actuator Control Circuit Performance). To decide between a clutch pack replacement or a simpler actuator fix, I used: C...

Resolve LAUNCH CR3001 Firmware Upgrade Error Code 600401-2

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  Problem : When updating my LAUNCH CR3001 ( Creader 3001 ) using the update software, I encountered error code 600401–2, which displayed the message "Incorrect serial number, please check." I have already entered a 12-digit number, but the system still cannot recognize the serial number, preventing me from updating the firmware. What could be the reason? Answer : Generally, you don’t need to enter a serial number to upgrade the LAUNCH CR3001 firmware. Please make sure the downloaded upgrade software is correct. For the CR3001, you download the "DIY integration upgrade tool" from the official website [ https://en.cnlaunch.com/download/ ] to upgrade. NOTE : The CR3001 comes with the latest firmware at the factory and usually does not require an upgrade. If you need to reinstall the software/firmware, please refer to: http://blog.x431shop.eu/launch-x431-creader-3001-upgrade-operation-guide/

LAUNCH CRT5011 V2: Replace Benz C260L Tire Pressure Sensor

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 The LAUNCH Creader TPMS 5011 V2 (CRT5011 V2) supports tire pressure sensor replacement in Mercedes-Benz vehicles. This article will describe how to replace the tire pressure sensor in a 2021 BENZ C260L (we recommend using the original tire pressure sensor/ LAUNCH LTR Sensor ). Tested Model: 2021  -  BENZ  - C260L Operating procedures: 1) Click [TPMS] , then enter keywords in the top search bar of 5011 V2 , such as "me" for Mercedes. You will see matching vehicle brand names appear, and then choose [MERCEDES] . 2) Choose choose the menu for the class and model: [C Class] -> [2015/07–2021/05(433MHz) [C205]] . Note: If multiple menus exist for the same model year, try another one if activation fails. 3) Choose [Active] to activate the four tire pressure sensors. The FR, RR, and RL wheel sensors are successfully activated, but the FL wheel sensor fails to be activated, so it is confirmed that the FL wheel sensor is damaged. 4) Remove the failed sensor...

How to do A/C Relay Actuator Test on Sany C8 with X431 PAD5

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 This guide provides a straightforward walkthrough for performing an A/C Relay Actuator Test on a 2020 Sany C8 using the Launch X431 PAD5 Elite . This diagnostic procedure is essential for verifying relay functionality and troubleshooting climate control issues in heavy-duty machinery. Prerequisites for Testing Before starting the test, ensure the following conditions are met to avoid execution failure: Ignition Status: T15 must be powered on. Engine State: Engine speed must be 0 RPM. Vehicle Movement: Vehicle speed must be 0 km/h. Duration: The test will automatically stop after 30 seconds. Step-by-Step Operation Guide Step 1: Vehicle Selection Navigate to Local Diagnose >> Construction >> Sany Tap OK to enter the diagnostic menu. Step 2: System Identification Go to Engine System >> Weichai Engine >> Automatic recognition >> Weichai engine automatic recognition >> WISEC10-P201-V174 Click OK to confirm vehicle information....

LAUNCH X431 PAD: Gearbox Clutch Learning on UD CG5 truck

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 This article will describe how to use the LAUNCH X431 Truck Diagnostic Tool ( X431 PAD V HD ) to perform Gearbox Clutch Learning on a Nissan UD CG5 truck (Volvo system). What is clutch learning in a transmission? In truck transmissions, "clutch learning" typically refers to the self-learning process in an AMT (Automated Manual Transmission) system. This process is used to calibrate parameters such as the clutch’s engagement point and friction point to ensure smooth gear shifting. When is it necessary to perform the transmission clutch learning function? This operation is generally performed after replacing clutch-related components (such as friction plates, TCU, etc.). For example: Replacing clutch friction plates, pressure plates, release bearings, etc.; Replacing the TCU or performing related repairs; After the vehicle experiences noticeable shifting jerks and other faults have been ruled out. How to execute the transmission clutch learning function? Th...

LAUNCH X431 Truck Diagnostic Software Update (April, 2026)

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 LAUNCH X431 Truck Diagnostic Software Update Information (April, 2026). The detailed upgrade content is as follows: HD_KNORR V10.30 Added basic function, actuation test and special function for KNORR TEBS4 CAN system; Added special function for some version of KNORR TPMS and TEBS4 K system; Fixed unknown software issue. SCANIA V16.20 New add thirty-five special functions.New add TCO, AMS2 Data stream. Optimized and fixed some problems. EV_HD_GEELY V10.80 Added the diagnostic function for LCV/ XingXiang V7EV8E(N72 Facet). DELPHI V12.70 Added Dongfeng Delphi Ruiqi M9T, Changcheng Delphi DCM7.24; Optimized Active Test and Special Function. HD_CATERPILLAR V12.50 Added Features such as Manual Aftertreatment Regeneration Procedure and Vibratory System Test; Fixed Some Known Issues. HD_DETROIT V12.90 Added parameter menu and some special features. WP_DIESEL V12.80 Added Weichai Self Developed WISE10E, Weichai Self Developed WISE10D, Weichai Self Developed ...

LAUNCH X431 CAN FD Connector & DoIP Adapter Support List

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 The LAUNCH X431 CAN FD Connector is a high-speed diagnostic adapter designed to support vehicles using the CAN FD and DoIP protocols. It enables professional diagnostic tools, such as the LAUNCH X431 and CRP Series , to communicate with the latest automotive systems that traditional OBDII interfaces cannot access. Why You Need the CAN FD Adapter As automotive manufacturers transition to faster data communication, the CAN FD protocol has become the standard for new models. This adapter is required to: Enable CAN FD Support : Access high-speed data rates on compatible models like the GM 2024 series and Golf 8. Support DoIP Protocols: Perform deep diagnostics on BMW (F/G/I/U chassis), Mercedes-Benz (S/C/E Class), and Land Rover. Expand Tool Compatibility: Connect seamlessly with LAUNCH X431 tablets and CRP series handheld scanners. Vehicle Support List The LAUNCH CAN FD Connector covers a wide range of global brands and modern architectures.   BMW - F ...